NEW STARTER MOTOR FITS JOHN DEERE POWER UNIT 404 500 DIESEL ENGINE 1978-1983 AR55638 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Starter - Voltage: 12V Rotation: Clockwise Teeth On Drive / Splines: 10 Source: Aftermarket Replaces Part Numbers: AR55638 AR55638 AR62267 AR62267